Standardise on double quoted strings

config/initializers/action_mailer.rb

@@ -1,7 +1,7 @@
 # Configure ActionMailer SMTP settings
 ActionMailer::Base.smtp_settings = {
-  :address => 'localhost',
+  :address => "localhost",
   :port => 25,
-  :domain => 'localhost',
+  :domain => "localhost",
   :enable_starttls_auto => false
 }

config/initializers/assets.rb

@@ -1,7 +1,7 @@
 # Be sure to restart your server when you modify this file.
 
 # Version of your assets, change this if you want to expire all your assets.
-Rails.application.config.assets.version = '1.0'
+Rails.application.config.assets.version = "1.0"
 
 # Add additional assets to the asset load path
 # Rails.application.config.assets.paths << Emoji.images_path

config/initializers/classic_pagination.rb

@@ -21,8 +21,8 @@
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #++
 
-require 'classic_pagination/pagination'
-require 'classic_pagination/pagination_helper'
+require "classic_pagination/pagination"
+require "classic_pagination/pagination_helper"
 
 ActionController::Base.class_eval do
   include ActionController::Pagination

config/initializers/cors.rb

@@ -7,8 +7,8 @@ module OpenStreetMap
   class Cors < Rack::Cors
     def call(env)
       status, headers, body = super env
-      if headers['Access-Control-Allow-Origin']
-        headers['Cache-Control'] = 'no-cache'
+      if headers["Access-Control-Allow-Origin"]
+        headers["Cache-Control"] = "no-cache"
       end
       [status, headers, body]
     end

config/initializers/field_error.rb

@@ -2,7 +2,7 @@ ActionView::Base.field_error_proc = proc do |html_tag, _instance|
   class_attr_index = html_tag.index 'class="'
 
   if class_attr_index
-    html_tag.insert class_attr_index + 7, 'field_with_errors '
+    html_tag.insert class_attr_index + 7, "field_with_errors "
   else
     html_tag.insert html_tag.index(/\/?>/), ' class="field_with_errors"'
   end

config/initializers/konacha.rb

@@ -1,5 +1,5 @@
 Konacha.configure do |config|
-  require 'capybara/poltergeist'
+  require "capybara/poltergeist"
   config.spec_dir = "test/javascripts"
   config.driver   = :poltergeist
 end if defined?(Konacha)

config/initializers/oauth.rb

@@ -1,4 +1,4 @@
-require 'oauth/rack/oauth_filter'
+require "oauth/rack/oauth_filter"
 
 Rails.configuration.middleware.use OAuth::Rack::OAuthFilter
 

config/initializers/output_compression.rb

@@ -1 +1 @@
-require 'output_compression/output_compression'
+require "output_compression/output_compression"

config/initializers/r2.rb

@@ -1,5 +1,5 @@
 class R2Template < Tilt::Template
-  self.default_mime_type = 'text/css'
+  self.default_mime_type = "text/css"
 
   def self.engine_initialized?
     defined? ::R2

config/initializers/sanitize.rb

@@ -1,5 +1,5 @@
 Sanitize::Config::OSM = Sanitize::Config::RELAXED.dup
 
 Sanitize::Config::OSM[:elements] -= %w(div style)
-Sanitize::Config::OSM[:add_attributes] = { 'a' => { 'rel' => 'nofollow' } }
+Sanitize::Config::OSM[:add_attributes] = { "a" => { "rel" => "nofollow" } }
 Sanitize::Config::OSM[:remove_contents] = %w(script style)

config/initializers/session_store.rb

@@ -3,5 +3,5 @@
 if defined?(MEMCACHE_SERVERS)
   Rails.application.config.session_store :mem_cache_store, :memcache_server => MEMCACHE_SERVERS, :namespace => "rails:session", :key => "_osm_session"
 else
-  Rails.application.config.session_store :cache_store, :key => '_osm_session'
+  Rails.application.config.session_store :cache_store, :key => "_osm_session"
 end